CVE-2021-30797

This issue was addressed with improved checks. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to code execution.

GNOME is the default desktop environment of Rocky Linux.

The following packages have been upgraded to a later upstream version: gdm (40.0), webkit2gtk3 (2.32.3). (BZ#1909300)

Security Fix(es):

• webkitgtk: Use-after-free in AudioSourceProviderGStreamer leading to arbitrary code execution (CVE-2020-13558)

• LibRaw: Stack buffer overflow in LibRaw::identify_process_dng_fields() in identify.cpp (CVE-2020-24870)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2020-27918)

• webkitgtk: IFrame sandboxing policy violation (CVE-2021-1765)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2021-1788)

• webkitgtk: Type confusion issue leading to arbitrary code execution (CVE-2021-1789)

• webkitgtk: Access to restricted ports on arbitrary servers via port redirection (CVE-2021-1799)

• webkitgtk: IFrame sandboxing policy violation (CVE-2021-1801)

• webkitgtk: Memory corruption issue leading to arbitrary code execution (CVE-2021-1844)

• webkitgtk: Logic issue leading to arbitrary code execution (CVE-2021-1870)

• webkitgtk: Logic issue leading to arbitrary code execution (CVE-2021-1871)

• webkitgtk: Use-after-free in ImageLoader dispatchPendingErrorEvent leading to information leak and possibly code execution (CVE-2021-21775)

• webkitgtk: Use-after-free in WebCore::GraphicsContext leading to information leak and possibly code execution (CVE-2021-21779)

• webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution (CVE-2021-21806)

• webkitgtk: Integer overflow leading to arbitrary code execution (CVE-2021-30663)

• webkitgtk: Memory corruption leading to arbitrary code execution (CVE-2021-30665)

• webkitgtk: Logic issue leading to leak of sensitive user information (CVE-2021-30682)

• webkitgtk: Logic issue leading to universal cross site scripting attack (CVE-2021-30689)

• webkitgtk: Logic issue allowing access to restricted ports on arbitrary servers (CVE-2021-30720)

• webkitgtk: Memory corruptions leading to arbitrary code execution (CVE-2021-30734)

• webkitgtk: Cross-origin issue with iframe elements leading to universal cross site scripting attack (CVE-2021-30744)

• webkitgtk: Memory corruptions leading to arbitrary code execution (CVE-2021-30749)

• webkitgtk: Type confusion leading to arbitrary code execution (CVE-2021-30758)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2021-30795)

• webkitgtk: Insufficient checks leading to arbitrary code execution (CVE-2021-30797)

• webkitgtk: Memory corruptions leading to arbitrary code execution (CVE-2021-30799)

• webkitgtk: User may be unable to fully delete browsing history (CVE-2020-29623)

• gnome-autoar: Directory traversal via directory symbolic links pointing outside of the destination directory (CVE-2020-36241)

• gnome-autoar: Directory traversal via directory symbolic links pointing outside of the destination directory (incomplete CVE-2020-36241 fix) (CVE-2021-28650)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.

This issue was addressed with improved checks. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to code execution.

GNOME is the default desktop environment of AlmaLinux.

The following packages have been upgraded to a later upstream version: gdm (40.0), webkit2gtk3 (2.32.3). (BZ#1909300)

Security Fix(es):

• webkitgtk: Use-after-free in AudioSourceProviderGStreamer leading to arbitrary code execution (CVE-2020-13558)

• LibRaw: Stack buffer overflow in LibRaw::identify_process_dng_fields() in identify.cpp (CVE-2020-24870)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2020-27918)

• webkitgtk: IFrame sandboxing policy violation (CVE-2021-1765)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2021-1788)

• webkitgtk: Type confusion issue leading to arbitrary code execution (CVE-2021-1789)

• webkitgtk: Access to restricted ports on arbitrary servers via port redirection (CVE-2021-1799)

• webkitgtk: IFrame sandboxing policy violation (CVE-2021-1801)

• webkitgtk: Memory corruption issue leading to arbitrary code execution (CVE-2021-1844)

• webkitgtk: Logic issue leading to arbitrary code execution (CVE-2021-1870)

• webkitgtk: Logic issue leading to arbitrary code execution (CVE-2021-1871)

• webkitgtk: Use-after-free in ImageLoader dispatchPendingErrorEvent leading to information leak and possibly code execution (CVE-2021-21775)

• webkitgtk: Use-after-free in WebCore::GraphicsContext leading to information leak and possibly code execution (CVE-2021-21779)

• webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution (CVE-2021-21806)

• webkitgtk: Integer overflow leading to arbitrary code execution (CVE-2021-30663)

• webkitgtk: Memory corruption leading to arbitrary code execution (CVE-2021-30665)

• webkitgtk: Logic issue leading to leak of sensitive user information (CVE-2021-30682)

• webkitgtk: Logic issue leading to universal cross site scripting attack (CVE-2021-30689)

• webkitgtk: Logic issue allowing access to restricted ports on arbitrary servers (CVE-2021-30720)

• webkitgtk: Memory corruptions leading to arbitrary code execution (CVE-2021-30734)

• webkitgtk: Cross-origin issue with iframe elements leading to universal cross site scripting attack (CVE-2021-30744)

• webkitgtk: Memory corruptions leading to arbitrary code execution (CVE-2021-30749)

• webkitgtk: Type confusion leading to arbitrary code execution (CVE-2021-30758)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2021-30795)

• webkitgtk: Insufficient checks leading to arbitrary code execution (CVE-2021-30797)

• webkitgtk: Memory corruptions leading to arbitrary code execution (CVE-2021-30799)

• webkitgtk: User may be unable to fully delete browsing history (CVE-2020-29623)

• gnome-autoar: Directory traversal via directory symbolic links pointing outside of the destination directory (CVE-2020-36241)

• gnome-autoar: Directory traversal via directory symbolic links pointing outside of the destination directory (incomplete CVE-2020-36241 fix) (CVE-2021-28650)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Updated webkit2 packages fix security vulnerabilities:

A use-after-free vulnerability exists in the way certain events are processed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. In order to trigger the vulnerability, a victim must be tricked into visiting a malicious webpage (CVE-2021-21775).

A use-after-free vulnerability exists in the way Webkit GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability (CVE-2021-21779).

Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30663, CVE-2021-30665, CVE-2021-30734, CVE-2021-30749, CVE-2021-30758, CVE-2021-30795, CVE-2021-30797, CVE-2021-30799).

Processing maliciously crafted web content may lead to universal cross site scripting (CVE-2021-30689, CVE-2021-30744).

A malicious website may be able to access restricted ports on arbitrary servers (CVE-2021-30720).

This update for webkit2gtk3 fixes the following issues:

• Update to version 2.32.3:
• CVE-2021-21775: Fixed a use-after-free vulnerability in the way certain events are processed for ImageLoader objects. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-21779: Fixed a use-after-free vulnerability in the way that WebKit GraphicsContext handles certain events. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-30663: An integer overflow was addressed with improved input validation. (bsc#1188697)
• CVE-2021-30665: A memory corruption issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30689: A logic issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30720: A logic issue was addressed with improved restrictions. (bsc#1188697)
• CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30744: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. (bsc#1188697)
• CVE-2021-30749: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30758: A type confusion issue was addressed with improved state handling. (bsc#1188697)
• CVE-2021-30795: A use after free issue was addressed with improved memory management. (bsc#1188697)
• CVE-2021-30797: This issue was addressed with improved checks. (bsc#1188697)
• CVE-2021-30799: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)

This update was imported from the SUSE:SLE-15-SP2:Update update project.

This update for webkit2gtk3 fixes the following issues:

• Update to version 2.32.3:
• CVE-2021-21775: Fixed a use-after-free vulnerability in the way certain events are processed for ImageLoader objects. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-21779: Fixed a use-after-free vulnerability in the way that WebKit GraphicsContext handles certain events. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-30663: An integer overflow was addressed with improved input validation. (bsc#1188697)
• CVE-2021-30665: A memory corruption issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30689: A logic issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30720: A logic issue was addressed with improved restrictions. (bsc#1188697)
• CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30744: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. (bsc#1188697)
• CVE-2021-30749: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30758: A type confusion issue was addressed with improved state handling. (bsc#1188697)
• CVE-2021-30795: A use after free issue was addressed with improved memory management. (bsc#1188697)
• CVE-2021-30797: This issue was addressed with improved checks. (bsc#1188697)
• CVE-2021-30799: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)

This update for webkit2gtk3 fixes the following issues:

• Update to version 2.32.3:
• CVE-2021-21775: Fixed a use-after-free vulnerability in the way certain events are processed for ImageLoader objects. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-21779: Fixed a use-after-free vulnerability in the way that WebKit GraphicsContext handles certain events. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-30663: An integer overflow was addressed with improved input validation. (bsc#1188697)
• CVE-2021-30665: A memory corruption issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30689: A logic issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30720: A logic issue was addressed with improved restrictions. (bsc#1188697)
• CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30744: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. (bsc#1188697)
• CVE-2021-30749: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30758: A type confusion issue was addressed with improved state handling. (bsc#1188697)
• CVE-2021-30795: A use after free issue was addressed with improved memory management. (bsc#1188697)
• CVE-2021-30797: This issue was addressed with improved checks. (bsc#1188697)
• CVE-2021-30799: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)

This update for webkit2gtk3 fixes the following issues:

Update to version 2.32.3:

• CVE-2021-21775: Fixed a use-after-free vulnerability in the way certain events are processed for ImageLoader objects. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-21779: Fixed a use-after-free vulnerability in the way that WebKit GraphicsContext handles certain events. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-30663: An integer overflow was addressed with improved input validation. (bsc#1188697)
• CVE-2021-30665: A memory corruption issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30689: A logic issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30720: A logic issue was addressed with improved restrictions. (bsc#1188697)
• CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30744: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. (bsc#1188697)
• CVE-2021-30749: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30758: A type confusion issue was addressed with improved state handling. (bsc#1188697)
• CVE-2021-30795: A use after free issue was addressed with improved memory management. (bsc#1188697)
• CVE-2021-30797: This issue was addressed with improved checks. (bsc#1188697)
• CVE-2021-30799: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)

This update for webkit2gtk3 fixes the following issues:

• Update to version 2.32.3:
• CVE-2021-21775: Fixed a use-after-free vulnerability in the way certain events are processed for ImageLoader objects. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-21779: Fixed a use-after-free vulnerability in the way that WebKit GraphicsContext handles certain events. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability. (bsc#1188697)
• CVE-2021-30663: An integer overflow was addressed with improved input validation. (bsc#1188697)
• CVE-2021-30665: A memory corruption issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30689: A logic issue was addressed with improved state management. (bsc#1188697)
• CVE-2021-30720: A logic issue was addressed with improved restrictions. (bsc#1188697)
• CVE-2021-30734: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30744: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. (bsc#1188697)
• CVE-2021-30749: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)
• CVE-2021-30758: A type confusion issue was addressed with improved state handling. (bsc#1188697)
• CVE-2021-30795: A use after free issue was addressed with improved memory management. (bsc#1188697)
• CVE-2021-30797: This issue was addressed with improved checks. (bsc#1188697)
• CVE-2021-30799: Multiple memory corruption issues were addressed with improved memory handling. (bsc#1188697)

A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.